CEO Recent Trades:

Sell: President and CEO Balu Balakrishnan sold 925 shares of POWI stock on 01/27/2011 at the average price of 37.5. Balu Balakrishnan owns at least 277,186 shares after this. The price of the stock has increased by 0.8% since.

Sell: President and CEO Balu Balakrishnan sold 75 shares of POWI stock on 01/26/2011 at the average price of 37.5. Balu Balakrishnan owns at least 277,186 shares after this. The price of the stock has increased by 0.8% since.

Sell: President and CEO Balu Balakrishnan sold 3,000 shares of POWI stock on 01/24/2011 at the average price of 36.3. Balu Balakrishnan owns at least 261,186 shares after this. The price of the stock has increased by 4.13% since.

Sell: President and CEO Balu Balakrishnan sold 7,000 shares of POWI stock on 01/18/2011 at the average price of 40.65. Balu Balakrishnan owns at least 261,186 shares after this. The price of the stock has decreased by 7.01% since.

Sell: President and CEO Balu Balakrishnan sold 7,000 shares of POWI stock on 01/10/2011 at the average price of 39.91. Balu Balakrishnan owns at least 261,186 shares after this. The price of the stock has decreased by 5.29% since.

Directors and Officers Recent Trades:

Sell: Vice President, Operations John Tomlin sold 750 shares of POWI stock on 02/01/2011 at the average price of 37.11. John Tomlin owns at least 18,872 shares after this. The price of the stock has increased by 1.86% since.

Sell: VP of Engineering Derek Bell sold 1,000 shares of POWI stock on 01/18/2011 at the average price of 40.93. Derek Bell owns at least 10,977 shares after this. The price of the stock has decreased by 7.65% since.

Sell: VP of Engineering Derek Bell sold 1,000 shares of POWI stock on 01/10/2011 at the average price of 39.9. Derek Bell owns at least 10,977 shares after this. The price of the stock has decreased by 5.26% since.

Sell: VP of Engineering Derek Bell sold 1,000 shares of POWI stock on 01/03/2011 at the average price of 40.4. Derek Bell owns at least 10,977 shares after this. The price of the stock has decreased by 6.44% since.

Sell: VP of Operations John Tomlin sold 3,750 shares of POWI stock on 01/03/2011 at the average price of 40.07. John Tomlin owns at least 12,472 shares after this. The price of the stock has decreased by 5.67% since.

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